Table 1.

Summary of the chi-square analysis relating to the category “daily smokers”

Constraint	Chi square
	Symmetric measures Phi/Cramer’s V	Asymptotic significance (2-sided)
Age	0.240	p < 0.001
Education	0.068	p < 0.001
Marital status	0.180	p < 0.001
Sex	0.083	p < 0.001
Occupational status	0.186	p < 0.001